Chrissy was two years younger than Innocence and was currently a junior at the University. They had played together often as children although Innocence had never been very fond of the younger girl. She was always scheming and conniving and always seemed to get Innocence in trouble. Cency did not trust Chrissy.
"Please don't let Chrissy see me like this," she begged again. "I'll never be able to go back to the school if word of this gets out."
The debate ended up costing Innocence an additional four days of slavery to the Byrons but everyone seemed satisfied with the deal. Frank and Trudy got to enjoy their sex toy for longer. And the additional extension took some of the sting out of the thirty thousand dollars they had spent for the girl. Even Innocence was satisfied with the deal. She had lost four more days of freedom but she was becoming numb to the reality that she was now a slave. At least she had prevented Chrissy from seeing her and possibly using her. There was no telling what the devious younger woman would have done with that knowledge.
Eventually, her term as the Byron's pet ended and she was returned to Dr. Grimm. She thought it odd that they would deliver her there but they explained that the rules were quite specific. They had to return the merchandise to the one who sold her. And since it was Dr. Grimm who sold her and not her husband, she would be sent back to Dr. Grimm.
Susan did not immediately return Innocence to her husband, however. She kept Innocence at her home for an additional three days which she explained to Richard was for academic purposes such as debriefing and monitoring and other data collection. In reality, Susan just wanted to enjoy the delightful little slavegirl a little longer.
When she was finally returned to Richard, she had been away from home for a whole month. Kaitlin wanted to immediately play with her missing pet but Richard vetoed that and took his wife to bed. He had her describe every perverted act of the previous two weeks as he fucked his girl.
On Monday, she was back in Dr. Grimm's office, naked as usual, to continue the research. Once again, she was put in the chair with the stirrups but this time was bound to it. Dr. Grimm was just finishing putting the sensors in place.
"That should do it," she said as she pushed the anal probe into Cency's bottom. "Now just relax for the next fifteen minutes to try to get into a neutral state and we will begin."
"Dr. Grimm," said Innocence but she was stopped short by the icy glare of the professor. "I mean Mistress. I'm not sure I can get into a neutral state. I'm naked and anyone could come in and see me. That has to have some effect on the readings. I have clamps on my nipples and clit and I have that thing in my bottom. How can I possibly achieve a neutral state?"
"That's a very good point, girl," replied the professor as she reached out to pat Cency on the cheek. "You are getting so smart. We should use the noninvasive sensors to establish a true neutral state. Then we will have the ‘in role but not stimulated' state that you are in now. And we can compare your stimulated responses to both of those baselines."
Innocence smiled at the response. It was good to hear praise about her idea. And now, she would be able to get dressed and only have the other sensors taped to her skin.
"We'll get those readings tomorrow," Dr. Grimm continued. "I have everything set up for today's experiment." Innocence sighed with disappointment. Well, at least she would get to keep her clothes on tomorrow.
"Yes, Mistress."
"Now, you just relax. I'm going to work at my desk while the data is collected."
"Yes, Mistress."
Dr. Grimm sat down and started making notes in her research journal. Occasionally, she would look up to check the readings on the monitor. As expected, Cency's readings indicated that she was moderately aroused which was understandable given the clamps that she had just received and the anal intruder that was inserted; plus being handled and adjusted. But also, as expected, the arousal level was falling as she sat still with no further stimulation.
Ten minutes went by and the arousal level dropped significantly. Dr. Grim set the journal aside and picked up the syllabus for the class she was teaching the next day. When she looked up again, she was surprised to see that the arousal level had increased. There were several small spikes in the readings and then the readings started escalating slowly. She glanced at the naked girl in the chair to see if she was doing anything that could produce these results. But Innocence was just sitting there motionless with her eyes closed.
"What are you thinking about, Cency?"
"Tom, Mistress," she replied. "I was wondering what happened to him. He seemed like a nice guy. And then I started remembering the way we were exhibited before they sold us. It was so humiliating."
It may have been humiliating, mused Susan, but it appeared to be highly stimulating to her girl. That was good to know. She made some more notes in her journal. Then she devised an experiment to determine whether or not Innocence could climax from being humiliating and she jotted more notes in her journal.
Today, however, she planned on learning how pain could stimulate the girl. For most people, pain erased arousal immediately. It took their mind off of anything stimulating and focused it on the pain. But she had seen Innocence climax immediately after a cane had cruelly punished her breasts. Maybe this girl's DNA was different. Maybe she was wired in a way that nobody else was.
She set her journal aside and returned to the bound girl. She had already placed the implements that she would need on the table behind the chair including the cane and dildos of various sizes. Since Innocence was already thinking of Tom, she picked up the long narrow dildo and started slowly rubbing its tip along the girl's petals.
"Tell me what you remember about being exhibited with Tom," Dr. Grim said. She was caressing the outer swell of Cency's right breast as she started to slowly insert the dildo. She wanted to raise the girl's arousal level and then see what happened when she applied the cane.
"Oh, it was just awful, Mistress," said Innocence. "It was so humiliating to be so exposed and then to be used like that in front of a crowd of people."
"Do you remember if you were aroused by the event?" asked Dr. Grimm as she started slowly stroking the dildo in as far as it would go and then out again. She saw that it was already shiny from Cency's juices.
"I don't remember, Mistress," said Innocence. "I'm sure I wasn't though. I mean how could anyone be aroused by being treated like that? It was dehumanizing."
Susan was pushing the dildo deep and could see by Cency's grimaces and flinches that she was making contact with the girl's cervix. If she was right about her hypothesis, each flash of pain would cause a spike in arousal instead of reducing it.
"Some people do get aroused by things like that," the professor informed her. "They take pleasure in having their bodies displayed and offered for use. I know the others in the room were taking pleasure in it. You were beautiful up there, dear. You made me very proud."
Innocence blushed at the compliment. She rarely got praise from her professor and had already received praise twice today. "Thank you, Mistress."
"And being so vulnerable as the huge cock slid into you was so erotic." She pushed the dildo in deep again as she said the words ‘huge cock' and Innocence moaned.
"So you liked Tom, did you?" asked Susan as her hand continued feeding the dildo into the bound research subject.
"Yes, Mistress," replied Innocence although it was evident that her breathing was becoming a bit irregular. "He did seem very nice. He was very nice to me."
"He seemed to have a very nice cock," observed Dr. Grimm. "Did you like it also?"
Innocence blushed at the question. "Yes, Mistress, he had a very nice cock. But it was too big for me, I think. Or maybe I was just too tiny for him. It was painful when he pushed all the way into me."